Return properly if no Edwards curve is supported.
Return properly if no Edwards curve is supported.

tfar/relic,ace0/relic,ace0/relic,ace0/relic,ukscone/relic,sruesch/relic,tfar/relic,OlegHahm/relic,OlegHahm/relic,sruesch/relic,ukscone/relic,ukscone/relic,OlegHahm/relic,ace0/relic,tfar/relic,sruesch/relic